Viral Mosaics

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Viral Mosaics

Turnip yellow mosaic virus 2.jpg
Transmission:Insects, infected hands or tools

Mosaic is the symptom of a number of plant viruses, perhaps the most familiar being Tobacco Mosaic Virus, which affects a wide range of hosts.

Symptoms and Signs[edit]

Irregular blotching of differently colored patches on the leaf, often with different colors in interveinal parts of the leaves.


Like any virus, transmission requires a vector (usually aphids) but human activity (such as pruning or grafting) can also transmit the viruses.

Host Range[edit]


  • Exclusion: Control vectors and alternate (weedy) hosts, keep cutting tools sterile.